On the relationship between the deuteron form factors and the physical S matrix. III

Troitskii, V.E.; Trubnikov, S.V.; Shirokov, Yu. M.

doi:10.1007/bf01035669

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2009

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“…This variant of dispersion approach was developed in Refs. [15,16,17,18,19,20,21] and was fruitfully used to investigate the structure of composite systems.…”

Section: The Modelmentioning

confidence: 99%

Nonperturbative relativistic approach to pion form factors: Predictions for future JLab experiments

2009

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Some predictions concerning possible results of the future JLab experiments on the pion form factor Fπ(Q 2 ) are made. The calculations exploit the method proposed previously by the authors and based on the instant-form Poincaré invariant approach to pion considered as a quark-antiquark system. Long ago, this model has predicted with surprising accuracy the values of Fπ(Q 2 ) measured later in JLab experiment. The results are almost independent from the form of wave function. The pion mean square radius r 2 π and the decay constant fπ also agree with experimental values. The model gives power-like asymptotic behavior of Fπ(Q 2 ) at high momentum transfer in agreement with QCD predictions.

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“…This variant of dispersion approach was developed in Refs. [15,16,17,18,19,20,21] and was fruitfully used to investigate the structure of composite systems.…”

Section: The Modelmentioning

confidence: 99%